Catalogue entry no. 354 by Max Loehr:
354 Pair of Small Disks with Pattern of Plastic Curls
Greenish gray and blackish, faintly translucent stone. The calcified areas at the edges of both pieces have partly disintegrated. The irregularly rounded disks are decorated with more or less concentrically arranged curls executed in relief with spiral incisions, in a technique that appears to stand midway between that of Nos. 353 and 355. Eastern Chou.